Telemedicine

1. Use of telecommunication systems in real-time or near real-time to transmit medical images and information to distant professionals for purposes of diagnosis and medical care (e.g., scanned images, direct digital capture [DDC], interactive television [IATV], and high-definition television [HDTV]). 2. Professional services given to a patient through an interactive telecommunications system by a practitioner at a distant site.

teletypewriter (TTY)

Communication device used by people who are deaf, hard of hearing, or have a severe speech impairment. A TTY consists of a keyboard, display screen, and modem. Messages travel over regular telephone lines. Individuals who do not have a TTY can communicate with a TTY user through a message relay center (MRC). An MRC has TTY operators available to send and interpret TTY messages.